(19)
(11) EP 1 725 925 A2

(12)

(88) Date of publication A3:
05.01.2006

(43) Date of publication:
29.11.2006 Bulletin 2006/48

(21) Application number: 05720836.5

(22) Date of filing: 09.03.2005
(51) International Patent Classification (IPC): 
G06F 1/00(2006.01)
(86) International application number:
PCT/JP2005/004581
(87) International publication number:
WO 2005/085980 (15.09.2005 Gazette 2005/37)
(84) Designated Contracting States:
DE FR GB

(30) Priority: 10.03.2004 JP 2004067846

(71) Applicant: MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD.
Kadoma-shi, Osaka 571-8501 (JP)

(72) Inventors:
  • YOKOTA, Kaoru, c/o Matsushita Elec. Ind. Co., Ltd.
    Chuo-ku, Osaka-shi, Osaka 540-6319 (JP)
  • MATSUZAKI, Natsume, c/o Matsushita Elec. Ind. Co.,
    Chuo-ku, Osaka-shi, Osaka 540-6319 (JP)
  • NONAKA, Masao, c/o Matsushita Elec. Ind. Co., Ltd.
    Chuo-ku, Osaka-shi, Osaka 540-6319 (JP)
  • INOUE, Mitsuhiro, c/o Matsushita Elec.Ind.Co.,Ltd.
    Chuo-ku, Osaka-shi, Osaka 540-6319 (JP)
  • HIGASHI, Akio, c/o Matsushita Elec. Ind. Co., Ltd.
    Chuo-ku, Osaka-shi, Osaka 540-6319 (JP)
  • NAKAHARA, Tohru, c/o Matsushita Elec. Ind.Co.,Ltd.
    Chuo-ku, Osaka-shi, Osaka 540-6319 (JP)

(74) Representative: Grünecker, Kinkeldey, Stockmair & Schwanhäusser Anwaltssozietät 
Maximilianstrasse 58
80538 München
80538 München (DE)

   


(54) AUTHENTICATION SYSTEM AND AUTHENTICATION APPARATUS